3-4
Cisco ONS 15327 Troubleshooting Guide, R3.4
April 2003
Chapter3 Replace Hardware
Inspect, Clean, and Replace the Reusable Air Filter

Step 1 Move any cables that are routed in front of the fan-tray a ssembly a nd air f ilter so you c an e asily slide the

filter out, as shown in Figure 3-3 on page 3-4.

Step 2 Grasp the metal tab at the edge of the filter and slide the filter out of the bracket while being careful not

to dislodge any dust that may have collected on the filter.

Figure3-3 Removing the Reusable Fan-Tray Air Filter

Step 3 Visually inspect the filter material for dirt and dust.

Step 4 If the reusable air filter contains a concentration of dirt and dust, vacuum or wash the air filter. Prior to

washing the air filter, replace the dirty air filter with a spare clean air filter (spare filters should be kept in stock).

Step 5 Wash the dirty air filter under a faucet with a light detergent. After washing the air filter, allow it to

completely air dry for at least eight hours before re using.

Note Cleaning should take place outside the operating environment to avoid releasing dirt a nd d ust

near the equipment.

Warning

Do not put a damp filter back in the ONS 15327.

Step 6 Slide the clean air filter back into the s h elf . ( S ee Fig ure 3-4 on pa ge 3-5 .)

1234
E10/100-T
FAIL
ACT
SF
1234
E10/100-T
FAIL
ACT
SF
OC12/STM-4
IR 1310
FAIL
ACT
SF
OC48/STM-16
IR 1310
FAIL
ACT
SF
ACO
LAN CRAFT
XTC-28-3
LAMP
TEST
FAIL
ACT/STBY
SYNC
ACO
DS3 SF
DS1 SF
PWR A
PWR B
CRIT
MAJ
MIN
REM
ACO
LAN CRAFT
XTC-28-3
LAMP
TEST
FAIL
ACT/STBY
SYNC
ACO
DS3 SF
DS1 SF
PWR A
PWR B
CRIT
MAJ
MIN
REM
BITS
MIC B
ALARM DS1 (15-28)
-48VRET
PWR B
Rx 1 Rx 2 Rx 3
BITS
MIC A
ALARM DS1 (15-28)
-48VRET
PWR B
Tx 1 Tx 2 Tx 3
78962